86 



HYMENOPTERA. 



wings subhyaline and iridescent, the nervures rufo-testaceous ; 

 a deep constriction between the first and second segments of the 

 abdomen, the node cylindrical, the apex obtuse. 



Hob. Birmah. 



13. PONERA RUBRA. 



Female. Length 3 lines. Bright chestnut-red, smooth and 

 impunctate : the head dusky before the ocelli ; the mandibles 

 serrated on their inner margin ; the antennae as long as the tho- 

 rax, slightly thickened towards their apex. Thorax widest in 

 front, the disk slightly fuscous ; the metathorax obliquely trun- 

 cate, the truncation smooth and shining ; the anterior margin of 

 the prothorax rounded. The node of the peduncle rounded in 

 front and truncate behind. Abdomen elongate-ovate, pointed 

 and pubescent at the apex. 



Hab. Singapore. (Coll. W. W. Saunders, Esq.) 



14. PONERA GEOMETRICA. 



Worker. Length 5 lines. Black, with more or less of a bronze 

 tint : head, thorax and base of the abdomen striated, the striae 

 on the head longitudinal ; the clypeus angulated in front ; the 

 mandibles ferruginous. Thorax rounded anteriorly, the disk with 

 a number of transverse striae in front, which are enclosed by cir- 

 cular stria3, beyond, the striation runs in an elongate-oval di- 

 rection ; the sides of the thorax obliquely striated ; the legs ob- 

 scurely ferruginous. Abdomen : the first segment with a beau- 

 tiful even-curved striation ; the node of the peduncle incrassate, 

 rounded in front, truncate behind, the margin of the truncation 

 deeply emarginate above, the lateral angles of the emargination 

 produced into long stout acute spines ; the node with a curved 

 striation, the curve being forwards ; the apical segments smooth 

 and shining, covered with silky cinereous pubescence. 



Hab. Singapore. (Coll. W. W. Saunders, Esq.) 



15. PONERA TRANSVERSA. B.M. 



Worker. Length 4 lines. Black : the head deeply striated, 

 the striae on the vertex diverging from the centre ; the antennae 

 scarcely as long as the thorax, inserted at the side of two ridges, 

 forwards on the face at the base of the clypeus ; the elevations, 

 extreme base of the scape and the mandibles obscurely ferrugi- 

 nous. Thorax elongate, the sides straight, slightly narrowed 

 from the front towards the abdomen ; the margin of the thorax 

 rounded in front, the lateral angles furnished with a short obtuse 



